This week, NOW brings you a story of unspeakable tragedy and a painful search for justice. You'll meet Mary, a young girl in South Africa who was raped repeatedly by her step-father and infected with HIV as a result. And she's not alone - tens of thousands of young girls have been attacked in their homes and on the streets. The horror is made worse by a South African government that withholds the drugs that could save these young lives. Journalist Jamila Paksima travels to South Africa to look for answers. And Archbishop Desmond Tutu, recipient of the 1984 Nobel Peace Prize, talks to Bill Moyers about the desperate situation in South Africa: "I have said that we are facing a kind of new apartheid, and that we had a particular kind of commitment in the struggle against apartheid. And I've said, let's invoke that same spirit in face of this massive, massive challenge."